EP 1082723 A1 20010314 - USAGE DEPENDENT TICKET TO PROTECT COPY-PROTECTED MATERIAL
Title (en)
USAGE DEPENDENT TICKET TO PROTECT COPY-PROTECTED MATERIAL
Title (de)
NUTZUNGSABHÄNGIGES IDENTIFIKATOR ZUM SCHUTZ VON KOPIERGESCHÜTZTEM MATERIAL
Title (fr)
TICKET DE PROTECTION DEPENDANT DE L'EMPLOI, CON U POUR LE MATERIEL PROTEGE
Publication
Application
Priority
- EP 0002599 W 20000322
- US 12616799 P 19990325
- US 45435099 A 19991203
Abstract (en)
[origin: WO0058962A1] A usage-limit is associated with each copy of copy-protected material. A conforming playback device determines how much usage has been made of the copy, and only plays the copy-protected material if the usage is within the associated usage-limit of the copy. In a preferred embodiment of this invention, the providing source of the copy contains a total-usage-measure that is allocated among each of the provided copies of the copy-protected material, thereby allowing for more than one copy of the copy-protected material to be produced, or "checked-out" from the providing source. When a copy of the copy-protected material is subsequently returned, or "checked-in" to the providing source, the usage allocation associated with this copy is returned to the total-usage-value. In this manner, if a particular copy of the copy-protected material is lost, damaged, or misplaced, the loss of value to the purchaser is merely a reduction in the available total-usage. In a preferred embodiment, the parameters associated with the usage-limit are communicated via the copy of the material in a secure manner, so that an illicit provider cannot alter these parameters. Similarly, in a preferred embodiment, the parameters associated with the usage-limit are securely bound to the copy-protected material, so that an illicit provider cannot substitute illicit material for the copied material. Other security measures, such as an encryption of the copy-protected material, watermarking, ticketing, and the like, are also compatible with these aforementioned techniques, and are included in a preferred embodiment of this invention.
IPC 1-7
IPC 8 full level
G06F 12/14 (2006.01); G06F 1/00 (2006.01); G06F 21/10 (2013.01); G06F 21/60 (2013.01); G06F 21/62 (2013.01); G06K 17/00 (2006.01); G06Q 50/00 (2006.01); G06T 1/00 (2006.01); G09C 1/00 (2006.01); G09C 5/00 (2006.01); G10L 19/00 (2013.01); G10L 19/018 (2013.01); G10L 25/51 (2013.01); G11B 20/00 (2006.01); G11B 20/10 (2006.01); H04N 1/387 (2006.01); H04N 5/91 (2006.01); H04N 5/92 (2006.01)
CPC (source: EP KR US)
G06F 21/10 (2013.01 - EP KR US); G11B 20/00086 (2013.01 - EP US); G11B 20/00123 (2013.01 - EP US); G11B 20/0021 (2013.01 - EP US); G11B 20/00289 (2013.01 - KR); G11B 20/00384 (2013.01 - KR); G11B 20/00557 (2013.01 - EP US); G11B 20/00695 (2013.01 - EP US); G11B 20/00746 (2013.01 - EP US); G11B 20/00797 (2013.01 - EP US); G11B 20/00811 (2013.01 - EP KR US); G11B 20/00884 (2013.01 - EP US); G06F 2211/008 (2013.01 - EP KR US); G06F 2221/2135 (2013.01 - EP US); G11B 2020/10546 (2013.01 - EP US); G11B 2220/60 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
WO 0058962 A1 20001005; CN 1181488 C 20041222; CN 1306664 A 20010801; EP 1082723 A1 20010314; ID 27738 A 20010426; JP 2002540552 A 20021126; KR 20010043746 A 20010525; US 2004004114 A1 20040108; US 2004004115 A1 20040108; US 6601046 B1 20030729; US 6755346 B2 20040629; US 6817535 B2 20041116
DOCDB simple family (application)
EP 0002599 W 20000322; CN 00800909 A 20000322; EP 00922543 A 20000322; ID 20002405 A 20000322; JP 2000608379 A 20000322; KR 20007013103 A 20001122; US 45435099 A 19991203; US 61515403 A 20030708; US 61515603 A 20030708